KR101653740B1 - Girder with vertical walls, rahmen bridge using the same and construction method thereof - Google Patents

Girder with vertical walls, rahmen bridge using the same and construction method thereof Download PDF

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Publication number
KR101653740B1
KR101653740B1 KR1020160056814A KR20160056814A KR101653740B1 KR 101653740 B1 KR101653740 B1 KR 101653740B1 KR 1020160056814 A KR1020160056814 A KR 1020160056814A KR 20160056814 A KR20160056814 A KR 20160056814A KR 101653740 B1 KR101653740 B1 KR 101653740B1
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South Korea
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girder
wall
vertical
vertical walls
upper portion
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KR1020160056814A
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Korean (ko)
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김성
안종국
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(주)리튼브릿지
김성
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00—Material constitution of bridges
    • E01D2101/20—Concrete, stone or stone-like material
    • E01D2101/24—Concrete
    • E01D2101/26—Concrete reinforced
    • E01D2101/268—Composite concrete-metal

Abstract

A girder is disclosed that includes a raman-type sheeter vertical wall. The girder including the raman type vertical wall includes a vertical wall portion including both vertical walls formed so as to be spaced apart from each other at a predetermined interval in the lateral direction at the both focal points and between the lower portion of both vertical walls and the upper portion of the wall portion A roller portion is disposed on the other side between the lower portion of the both vertical walls and the upper portion of the wall portion to prevent an additional bending moment and horizontal force from being generated when the upper slab is poured .

Figure R1020160056814

Description

TECHNICAL FIELD [0001] The present invention relates to a girder including a shear wall, a ramen bridge, and a girder bridge using the girder bridge.

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a girder including a balancer vertical wall, a ramen bridge using the same, and a construction method thereof. More specifically, according to the present invention, since both right and left vertical walls are provided at the ends of the girders and elastic members and roller portions are provided at the lower portions of both vertical walls, additional moments are not applied to the right corners, The present invention relates to a girder including a ramp-type vertical wall capable of increasing the sectional rigidity of a right-angled portion, a ramen bridge using the same, and a construction method thereof.

The structural form of the ramen is a structure in which the horizontal member supporting the horizontal force and the vertical member supporting the vertical force are integrally joined to each other at the right corner. That is, the structure of the raymen can be a structure in which the rigidity of the entire structure is increased by allowing the external load to be resisted by the bending stiffness of the horizontal member and the vertical member.

The ramen bridge is a bridge in which vertical members, piers or alternations, and horizontal member girders are joined together.

The ramen bridges usually form bridges or alternations that are bridge substructures, and after the girders are installed at the bridge pier or alternation, the slabs are poured on the upper part of the girder and the rudder part is strengthened.

When the slab is laid, the girder is bent by the bending moment due to the weight of the girder as well as by the weight of the slab, and an additional cross section is required to resist the negative bending moment.

In addition, when the slab is poured, the end portion of the girder can move in the longitudinal direction of the girder due to the self weight of the slab, etc. However, the right portion must resist not only the negative bending moment but also the force in the horizontal direction, .

In order to solve the problems of such a ramen bridge, FIG. 1A shows a ramen bridge construction method of forming a ridge formed by a prestressed precast unit girder having a right angle hinge structure and a bottom plate composite portion reinforcing steel Is disclosed in Japanese Patent Application Laid-Open No. 10-0893110.

1A, a prestress unit girder having a hinge structure having a right angle part when a bottom plate is installed is not made into a rigid structure from the beginning, unlike the conventional method, but the wall 10, the girder 20, the wall 10, The slab 40 is made into a hinge structure and then the steel structure is formed by concrete hardening.

Since the prestressed union girder having the right angle hinge structure in the conventional floor slab is made of the hinge structure, the negative moment (-M) is generated by the self weight of the girder 20 and the self weight of the bottom plate slab 40, So that the cross section of the wall can be designed smaller than the conventional one.

However, in the conventional prestress unit girder having the hinge structure of the right angle part when the bottom plate is previously laid, the girder is supported by the hinge rigid bar to allow only the rotation at the right angles, .

The prestress unit girder having the hinge structure of the right angle portion when the floor slab is conventionally installed is installed such that the girder is spaced apart from the upper end of the wall by a predetermined distance. Therefore, not only the structure is very unstable during the construction process but also a large amount of dams and molds are required in the right corners in order to strengthen the girders and the walls, and a large amount of dams and dies are required in order to connect the respective girders in the lateral direction. And the economical efficiency is very low.

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the problems of the prior art described above, and it is an object of the present invention to provide an apparatus and a method for controlling a girder by providing both vertical ends of a girder and an elastic member and a roller portion below the both vertical walls, Which is capable of reducing the cross-section of the right-angled portion of the girder bridge, and a method of providing the girder bridge using the same and a construction method thereof.

Further, according to the present invention, both vertical walls are spaced apart from each other at predetermined intervals in the lateral direction so that the vertical reinforcing bars penetrate between the both vertical walls to increase the rigidity of the righthand portion, and a 'U' A girder including a balancer-type vertical wall for preventing vertical detachment of the girder when the upper slab is laid so that the reinforcing bar surrounds the vertical reinforcing bar, a ramen bridge using the girder, and a method of constructing the girder are provided.

The present invention also relates to a girder bridge comprising a girder upper portion and a girder end flange portion in a transverse direction and a flange portion interposed between the girder bridge portion and a precast panel interposed therebetween, Girder, a ramen bridge using the girder, and a construction method thereof.

As a means for solving the above-mentioned problems, a girder including a bal- ance vertical wall according to the present invention is characterized in that the girder has a vertical wall including two vertical walls spaced at predetermined intervals in the transverse direction at both fulcrums And an elastic member is formed at one side between the lower portion of the both vertical wall portions and the upper portion of the wall portion to release rotational restraint of the girder, and on the other side between the lower portion of the both vertical walls and the upper portion of the wall portion on one side Roller sections can be arranged to prevent additional bending moments and horizontal forces from occurring when the upper slab is poured.

As another means for solving the above-mentioned problems, according to the present invention, there is provided a ramen bridges using a girder including a bilameter bridging bridge according to the present invention, in which a plurality of girders are installed on the upper part of the bridges in a lateral direction, And an elastic member is formed at one side between the lower portion of the vertical wall and the upper portion of the wall portion, And a roller is disposed on the other side between the lower part of the both vertical walls and the upper part of the wall part of one side so that additional bending moment and horizontal force can be prevented from occurring when the upper slab is poured.

As another means for solving the above-mentioned problems, the present invention provides a ramen bridge construction method using a girder including a bal- ance vertical wall of a ramen bridge, comprising the steps of: (A) forming a wall-side reinforcing bar including an outer wall vertical reinforcement and an inner wall vertical reinforcement on an upper portion of both wall portions; (b) supporting a lower portion of both vertical walls formed at predetermined intervals in the lateral direction at both of the fulcrum portions of the girder, on the elastic member and the roller portion previously formed on the wall portion; (c) forming a slab portion on an upper portion of the girders spaced apart from each other in the transverse direction; And (d) installing a right angle concrete so that the vertical wall including the right vertical wall, the roller, and the elastic member and the wall reinforced concrete are embedded, and an elastic member is formed on the wall So that the rolling restraint of the girder is released, and the roller portion is disposed on the upper portion of the wall portion, so that additional bending moment and horizontal force can be prevented from occurring when the upper slab is poured.

According to the present invention, by providing both vertical walls at the end portions of the girders and by arranging the elastic members and the roller portions under the both vertical walls, additional moment and horizontal force can be prevented from being applied to the right corner portions.

Further, according to the present invention, since the plurality of inner wall portion vertical reinforcing bars are located between the both vertical walls, the ruggedness of the right corner portion due to the placement of the right corner concrete (C) increases, It is possible to mount the wall directly, and the workability is greatly increased.

The present invention also provides for a connection reinforcing bar to surround the vertical wall of the outer wall so that longitudinal displacement of the girder at both ends of the girder is prevented while permitting longitudinal movement when the slab is placed on top of the girder.

Further, the present invention provides a flange portion in the lateral direction on the upper portion of the girder and an end portion of the girder, and a precast panel is inserted between the flange portion, thereby minimizing the installation of the formwork.

FIG. 1 is an exploded perspective view of a hinge leg hinge structure in a conventional raymond bridge.
FIGS. 2A and 2B are perspective views showing girders including a balancer vertical wall and a ramen bridge using the same according to the embodiment of the present invention.
FIG. 3A is an exploded perspective view showing a girder including a positive working wall for men's wear according to an embodiment of the present invention and a right-angled portion of a ramen bridge using the same.
FIG. 3B is a side view of a girder including a bilge vertical wall according to an embodiment of the present invention, and a girder of a ramen bridge using the same.
FIGS. 4A and 4B are side views showing a girder including a balancer vertical wall according to an embodiment of the present invention, and an elastic member and a roller portion of a ramen bridge using the girder.
5a to 5c are cross-sectional views illustrating first to third embodiments for forming a top slab in a girder including a girder bridge having a pair of right and left vertical walls according to an embodiment of the present invention and a ramen bridge using the same.
6A to 6E are views showing a method of applying a ramen bridge using a girder including a bilaterally correcting wall according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

[Girders (150) including a raman type vertical wall of the present invention]

FIGs. 2A and 2B are perspective views showing a girder including a balancer vertical wall and a ramen bridge using the girder bridge according to an embodiment of the present invention, FIG. 3B is an explanatory perspective view showing a girder including a girder and a rally bridge using the girder, and FIG. 3B is an explanatory view showing a girder including a girder bridge and a rally bridge using the girder bridge according to the embodiment of the present invention.

2 to 3B, a girder 150 including a ramp interchangeable vertical wall according to an embodiment of the present invention includes both vertical walls 130 and a precast panel 160.

The girder 150 is an "I" type or an "H" type girder formed of an upper flange, an abdomen and a lower flange and may be formed of a common girder, The PSC girder can be formed as a PSC girder.

The girder 150 includes an upright wall portion 130 including a pair of vertical walls 131 spaced apart from each other at predetermined intervals in the transverse direction at both focal points.

A plurality of "U" shaped connecting reinforcing bars 133 protrude from the both vertical walls 131 to enclose the outer wall vertical reinforcing bars 141 which are drawn upward from the upper portion 121 of the wall portion 120, Thereby preventing longitudinal displacement of the girder 150.

In this case, the both vertical walls 131 are formed to have a height wrapping the connection reinforcing bars 133 to the lower portion of the curved portion of the outer-wall vertical reinforcing bars 141, and are spaced apart from each other at predetermined intervals in the lateral direction, So that the inner wall vertical reinforcement 143 extending upward from the upper portion 121 of the wall portion 120 passes through the wall 131.

An elastic member 135 is formed at one side between the lower part of the vertical wall 131 and the upper part 121 of the wall part 120 to release the rotational constraint of the girder 150. The elastic member 135 is elastically deformable as a pad-like member, and a lower portion of the end portion of the girder 150 is mounted on the upper portion of the elastic member 135 to reduce a bending moment generated at the right corner by elastic deformation .

 Roller portions 139, 139a, and 139b are disposed on the other side between the lower portion of both vertical walls 131 and the upper portion 121 of the wall portion 120 on one side so that no horizontal force is generated when the upper slab is poured.

The roller portions 139, 139a and 139b are rod-like members and may be formed of a roller portion 139a provided to rotate directly in contact with the upper portion 121 of the wall portion 120, And a roller portion 139b provided on the upper portion of the roller supporting rib 136 formed in advance.

An upper flange portion 151 and a horizontal reinforcing bar 155 for forming the slab portion S are formed on the upper portion of the girder 150 spaced from each other in the transverse direction on the upper portion of the center portion of the girder 150, A side flange portion 153 extending from the upper flange portion 151 to the lower ends of both ends of the girder 150 is formed at the fulcrum portion of the flange portion 150.

The construction for forming the slab portion S will be described in more detail in the ramen bridge 100 using the girder including the ramp bridge.

According to the present invention, by providing both vertical walls at the end portions of the girders and by arranging the elastic members and the roller portions under the both vertical walls, additional moment and horizontal force can be prevented from being applied to the right corner portions.

In addition, the present invention allows the connecting reinforcing bars to be formed so as to enclose the vertical reinforcing bars of the outer wall portion, thereby preventing longitudinal displacement of the girders at both ends of the girder while permitting longitudinal movement when laying the slab on the upper portion of the girder

[Raman bridge (100) using a girder including both right and left vertical walls of the present invention)

FIGs. 2A and 2B are perspective views showing a girder including a balancer vertical wall and a ramen bridge using the girder bridge according to an embodiment of the present invention, FIG. 3B is an explanatory perspective view showing a girder including a girder and a rally bridge using the girder, and FIG. 3B is an explanatory view showing a girder including a girder bridge and a rally bridge using the girder bridge according to the embodiment of the present invention.

2 to 3B, a ramen bridge 100 using a girder including a bilateral vertical wall according to an embodiment of the present invention includes a base portion 110, a wall portion 120, 130, a wall reinforcement 140, a girder 150, and a precast panel 160.

The base portion 110 is installed on the ground, and the wall portion 120 is formed on the upper surface of the base portion 110.

The girder 150 of the present invention is formed to be mounted on the upper portion of the wall portion 120 and the plurality of the wall portions 120 are formed so that the girder 150 is disposed on the upper surface of the wall portion 120 in the longitudinal direction of the girder It is of course also possible to form them continuously.

The vertical wall portion 130 is formed at both the fulcrums of the girder 150 located at the right corner of the ramend bridge 100.

The vertical wall portion 130 includes both vertical walls 131, a connecting reinforcing bar 133, an elastic member 135, a reinforcing portion 137, and a roller portion 139.

The both vertical walls 131 are formed so as to be spaced from each other at predetermined intervals in the transverse direction at both fulcrums of the girder 150. [

The both vertical walls 131 may be formed in a rectangular parallelepiped shape, but it is of course possible that the ends of both vertical walls 131 are rounded.

The both vertical walls 131 are formed to have predetermined heights so that the connection reinforcing bars 133 formed on the upper portions of the both vertical walls 131 surround the curved portions of the outer reinforcing bars 141. That is, since the both vertical walls 131 are formed so as to have a height higher than the transverse width, the sectional height is increased so that the sectional rigidity is remarkably increased.

An elastic member 135 is formed between a lower portion of both the vertical walls 131 formed at one side of the girder 150 and at one side of the fulcrum portion and the upper portion 121 of the wall portion 120, A roller portion 139 is formed on the outer side of the elastic member 135 from the center portion toward the fulcrum portion.

A reinforcing portion 137 is formed at the lower end of the both vertical walls 131 where the roller portion 139 is formed.

An elastic member 135 and a roller portion 139 may be formed on the lower portion of both vertical walls 131 at the other side of the girder 150, It is of course also possible to form the vertical wall 131 to be supported by the upper portion 121 of the wall portion 120 only.

The vertical walls 131 are spaced apart from each other by a predetermined interval in the transverse direction, and the inner wall vertical reinforcement 143 is formed to pass through between the vertical walls 131. Accordingly, it is an object of the present invention to provide a reinforced concrete structure in which a plurality of inner side wall vertical reinforcing bars are positioned between both vertical walls to increase the rigidity of the right side walls by the placement of the right side concrete (C) It is possible to mount the wall directly, and the workability is greatly increased.

The connecting reinforcing bars 133 are formed to protrude from the longitudinal end faces of the both vertical walls 131.

The connecting reinforcing bars 133 are formed in a "U" -shaped shape so as to enclose the outer-wall vertical reinforcing bars 141. The present invention allows the connection reinforcing bars 133 to be formed at both ends of the girder 150 so as to surround the vertical reinforcing bars 141 of the outer wall portion while permitting longitudinal movement of the slabs when the slabs are placed on the upper portions of the girders 150. [ So that longitudinal detachment of the girder 150 is prevented.

The connection reinforcing bars 133 are formed in a plurality of connecting ribs 133. The connecting reinforcing ribs 133 on the upper portions of both the vertical walls 131 surround the outer reinforcing bars 141, To the lower portion just below the curved portion. Therefore, it can be seen that the both vertical walls 131 can be formed to a height up to the lower portion of the curved portion of the vertical wall 141 of the outer wall portion.

The elastic member 135 is elastically deformable as a pad-like member, and a lower portion of the end portion of the girder 150 is mounted on the upper portion of the elastic member 135 to reduce a bending moment generated at the right corner by elastic deformation .

The elastic member 135 is formed so that the girder 150 can slide while releasing the rotational restraint of the girder 150 when a load such as a slab is applied to the upper portion of the girder 150, And is formed to be movable in the longitudinal direction of the girder 150 while contacting the upper portions of the roller portions 139, 139a and 139b while sliding on the upper portion of the elastic member 135. [

The elastic member 135 is formed on the lower portion of both vertical walls 131 and on the upper portion 121 of the wall portion 120. The elastic member 135 may be formed at the end portion on the side of the center of the girder of the upper portion 121 of the wall portion 120.

The elastic member 135 releases the restraint of the rotation of the girder 150 so that a negative bending moment does not act on the girder 150 during construction.

The reinforcing portion 137 is formed below the both vertical walls 131 and is formed on the upper side of the roller portions 139, 139a, and 139b.

The reinforcing portion 137 is formed on the upper side of the roller portions 139, 139a and 139b so as to prevent the damage of the positive vertical wall 131 due to the longitudinal movement of the girder 150. [

A shear reinforcement is formed inside the reinforcing portion 137 so that the coupling force between the reinforcing portion 137 and the both vertical walls 131 is increased and the rigidity of both the vertical walls 131 is increased, Of course.

The roller portions 139, 139a and 139b are formed between the lower portion of the both vertical walls 131 and the upper portion 121 of the wall portion 120. [ That is, if the elastic member 135 is formed on the center side (one side) of the girder 150 of the upper portion 121 of the wall portion 120, the roller portions 139, 139a, and 139b are adjacent to the elastic member 135 (On the other side) of the upper portion 121 of the wall portion 120. [

The roller portions 139, 139a and 139b are rod-like members and may be formed of a roller portion 139a provided to rotate directly in contact with the upper portion 121 of the wall portion 120, And a roller portion 139b provided on the upper portion of the roller supporting rib 136 formed in advance. The roller portions 139, 139a, and 139b may be formed of a plurality of steel bars.

FIGS. 4A and 4B are side views showing a girder including a bal- ance vertical wall according to an embodiment of the present invention, and an elastic member and a roller portion in a ramen bridge using the same.

Referring to FIG. 4A, the roller portion 139a may be formed to be directly supported at an upper portion of the upper portion 121 of the wall portion 120. FIG.

Referring to FIG. 4B, the roller portion 139b may be formed to be supported by the roller support reinforcing bars 136 previously embedded in the upper portion 121 of the wall portion 120.

In this case, the roller support reinforcing bars 136 may be formed such that a plurality of reinforcing bars of "?" Intersect with each other, and a plurality of the reinforcing bars 136 may be spaced laterally from the upper portion 121 of the wall portion 120. Thus, the roller portion 139b is formed so as to be aligned and supported in the lateral direction and the longitudinal direction at the upper portion of the intersection of the roller portion supporting bars 136, so as to prevent the deviation from the upper portion of the intersection portion.

The wall reinforcement 140 includes an outer wall vertical reinforcement 141 and an inner wall vertical reinforcement 143 formed to be drawn upward from the inside of the wall portion 120.

The outer wall portion vertical reinforcement 141 extends vertically from the upper portion 121 of the wall portion 120 and extends to a predetermined length toward the center of the girder 150 horizontally through the curved portion.

The outer wall vertical reinforcement 141 may be connected by an unillustrated coupler, and may be formed to be wrapped by the connecting reinforcing bar 133 to a lower portion of the curved portion.

The inner wall vertical reinforcement 143 may be formed at predetermined intervals in the lateral direction along the upper portion 121 of the wall portion 120 where the elastic members 135 are formed.

The inner wall portion vertical reinforcement 143 is formed between the vertical walls 131 spaced from each other. The rigidity of the rudder portion is drastically improved according to the placement of the right portion concrete C, and the rigidity of the rudder portion is increased .

[Formation of slab portion (S)] [

3A and 3B, an upper flange portion 151 and a horizontal reinforcing bar 155 are formed on the upper portion of the central portion of the girder 150 to form a slab portion S on the girder 150 spaced apart from each other in the transverse direction. Is formed.

A side flange portion 153 extending from the upper flange portion 151 to a lower portion of both ends of the girder 150 is formed at a fulcrum portion of the girder 150.

Between the upper flange portion 151 and the side flange portion 153, precast panels 160 and 165 are formed, respectively, so that the installation of the formwork and the trams is minimized. Thus, the present invention increases the workability and economy.

With reference to Figs. 5 (a) and 5 (b), two embodiments of a flange portion and a precast panel for forming a slab portion on the upper portion of the girder will be described.

5 (a) and 5 (b), the left side shows the girder at the transverse end portion and the right side shows the girder formed between the transverse end portions.

5A, a projecting portion 151a is formed in the longitudinal direction of the girder 150 at the center of the side surface of the upper flange portion 151 so that the groove portion 163a of the precast panel 160a is projected from the projecting portion 151a. And is press-fitted and installed.

The precast panel 160a may be formed to correspond to the length of the center of the girder 150, but may be formed to have a plurality of longitudinally joining the precast panels 160a. In this case, the central portion of the girder 150 means a girder between the two fulcrum portions.

In this case, as the slab concrete is poured into the upper portion of the precast panel 160a, the support portion 161a may be supported by the horizontal reinforcing bar 155 to support the weight of the slab concrete.

5 (a), the configuration of the precast panel and the flange portion for forming the slab portion on the upper portion of the center portion of the girder in Fig. 5 (a) is not limited to the side flange portion 153 of the fulcrum portion of the girder and the precast panel 165 Of course, can be applied.

5B, a receiving portion 151b is formed at the lower side of the side surface of the upper flange 151 in the longitudinal direction of the girder 150 so that the upper projecting portion 163b of the precast panel 160b .

The precast panels 160b may be formed to correspond to the length of the center portion of the girder 150, but may be formed to have a plurality of longitudinally joined precast panels 160b. Also, although not shown, a supporting part may be formed on the upper part of the precast panel 160b to be supported by the horizontal reinforcing bars.

5 (b), the configuration of the precast panel and the flange portion for forming the slab portion on the upper portion of the center portion of the girder in Fig. 5 (b) is the same as that of the flange portion 153 and the precast panel 165 of the fulcrum portion of the girder Of course, can be applied.

5C, the upper flange 157 of the girder 150 is formed to have a transverse width larger than that of the lower flange. On one side of the upper flange 157 of the girder 150, a shear key 156 And a shear-key receiving groove 158 may be formed on the other side.

The left side of Fig. 5 (c) shows the girder at the transverse end, and the right side shows the girder formed between the transverse ends.

In this case, since the precast panel is not formed, the girders 150 are joined to each other in the transverse direction by the shear key 156 and the shear-key receiving groove 158. The upper flanges of the plurality of girders 150 that are joined can be laterally integrated by the steel wire 159.

In the meantime, according to the present invention, a ramen bridge (100) using a girder including a bal- ance wall

The prime momen of the center of the girder 150 is canceled by introducing prestressing by the first tension member 170 formed at the lower portion of the girder 150 after the girder 150 is pulled at the corner of the girder 150, The prestressing of the fulcrum of the girder 150 is canceled by introducing the prestressing by the secondary tension member 180 formed on the upper portion.

Accordingly, the present invention not only prevents bending moment and horizontal force from occurring at the fulcrum portion during the ramen bridge construction, but also cancels the static and negative moment due to the load of the ramen bridge by the first and second torsion members after the right- The structural safety of the ramen bridge will increase dramatically even after construction and installation.

[Method of laying brassiam bridges using a girder including a brassiammetric vertical wall of the present invention]

6A to 6E are views showing a method of applying a ramen bridge using a girder including a bilaterally correcting wall according to an embodiment of the present invention.

6 (a) and 6 (b), a ramen bridging method using a girder including a bilateral vertical wall for ramen work comprises the steps of (1) 141 and the inner side wall vertical reinforcing ribs 143 are exposed.

Next, the elastic members 135 and the roller portions 139, 139a, 139b previously formed on the upper portion 121 of the wall portion 120 are spaced apart from each other at predetermined intervals in the lateral direction at both focal points of the girders 150 So that the lower portion of the vertical wall 131 is supported.

At this time, an elastic member 135 is formed on the upper part 121 of the wall part 120 to release the rotational restraint of the girder 150. The roller part 139, 139a, 139b So that additional bending moment and horizontal force do not occur when the upper slab is poured.

In addition, between the both vertical walls 131, the two side portions of the girder 150 are mounted on the upper portion of the wall portion 120 such that the inner side wall vertical reinforcing bars 143 are positioned.

6C, the outer wall vertical reinforcement 141 protrudes from the upper portion 121 of the wall portion 120 and extends vertically to the center of the girder 150 horizontally through the curved portion. And can be formed to extend to a predetermined length.

That is, the outer wall vertical reinforcing bars 141 may be connected by unshown couplers, and may be formed to be surrounded by a plurality of connecting reinforcing bars 133 to a lower portion of the curved portion.

The present invention allows the connection reinforcing bars 133 to be formed at both ends of the girder 150 so as to surround the vertical reinforcing bars 141 of the outer wall portion while permitting longitudinal movement of the slabs when the slabs are placed on the upper portions of the girders 150. [ So that longitudinal detachment of the girder 150 is prevented.

The inner wall vertical reinforcement 143 may be formed at predetermined intervals in the lateral direction along the upper portion 121 of the wall portion 120 where the elastic members 135 are formed.

The inner wall portion vertical reinforcement 143 is formed between the vertical walls 131 spaced from each other. The rigidity of the rudder portion is drastically improved according to the placement of the right portion concrete C, and the rigidity of the rudder portion is increased .

6 (d) and FIG. 5, the slab portion S is formed on the upper portion of the girders 150 spaced apart from each other in the transverse direction.

An upper flange portion 151 for forming a slab portion on the upper portion of the girder 150 spaced apart from each other in the transverse direction and an upper flange portion 151 for forming a slab portion S are formed on the upper portion of the center portion of the girder 150, And a side flange portion 153 extending from the upper flange portion 151 to a lower portion of both ends of the girder 150 is formed at the fulcrum portion of the girder 150.

The upper flange 157 of the girder 150 is formed to have a transverse width larger than that of the lower flange so as to form the slab portion S, (156) may be formed on the other side and a shear-key receiving groove (158) may be formed on the other side. In this case, the girders 150 are joined to each other in the transverse direction, and the upper flanges of the plurality of girders 150 can be integrated in the transverse direction by the steel wires 159. The slab portion S may of course be formed on the upper portion of the upper flange 157 joined in the transverse direction.

Accordingly, the present invention minimizes the installation of dies and shafts, thereby dramatically increasing the workability and economy.

In this case, by arranging the elastic member and the roller portion under the both vertical walls, additional moment and horizontal force due to the placement of the slab portion S can be prevented from being applied to the right corner, So that the fulcrum portion of the girder can be formed.

6 (e), the vertical wall portion 130 including the positive vertical wall 131, the roller portions 139, 139a, and 139b, and the elastic member 135 and the wall- (C) to be buried.

Next, by introducing prestressing by the first tension member 170 formed at the lower portion of the girder 150, the second tension member 170 formed at the upper portion of the girder 150 is caused to cancel out the uppermost stress at the center portion of the girder 150, By introducing prestressing by means of the stiffener 180 to offset the momentum of the fulcrum of the girder 150.

Accordingly, the present invention not only prevents bending moment and horizontal force from occurring at the fulcrum portion during the ramen bridge construction, but also cancels the static and negative moment due to the load of the ramen bridge by the first and second torsion members after the right- The structural safety of the ramen bridge will increase dramatically even after construction and installation.

Thus, the construction of the upper and the right corner of the girder 150 is completed, and a bridge overhead structure is further formed on the upper part of the ramen bridge to complete the ramen bridge bridge.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: ramen bridge
110:
120:
130: vertical wall part
140:
150: Girder
160: Precast panel
170: primary tension material
180: Secondary tension member

Claims (20)

In a girder installed on an upper portion 121 of a wall portion 120 formed on an upper portion of a foundation 110,
The girder (150) includes a vertical wall part (130) including a pair of vertical walls (131) spaced apart from each other at predetermined intervals in a transverse direction at both focal points,
An elastic member 135 is formed at one side between the lower part of the vertical wall 131 and the upper part 121 of the wall part 120 to release rotational restraint of the girder 150, 139a and 139b are disposed on the other side between the lower part of the wall part 120 and the upper part 121 of the wall part 120 so that additional bending moment and horizontal force are not generated when the upper slab is poured,
A plurality of U-shaped connecting reinforcing bars 133 are formed on the both vertical walls 131 so as to surround the outer wall vertical reinforcing bars 141 which are drawn upward from the upper portion 121 of the wall portion 120. [ Thereby preventing longitudinal detachment of the girder (150). ≪ Desc / Clms Page number 19 > delete The method according to claim 1,
The both vertical walls 131 are formed to have a height wrapping the connection reinforcing bars 133 to the lower portion of the curved portion of the outer side wall vertical reinforcement 141 and spaced apart from each other at predetermined intervals in the lateral direction, So that an inner wall vertical reinforcement (143) extending upwardly from an upper portion (121) of the wall portion (120) passes through the girder wall (131). The method according to claim 1,
Wherein the roller portion 139b is installed on the upper portion of the roller supporting reinforcement 136 formed in the upper portion 121 of the wall portion 120. [ The method according to claim 1,
An upper flange portion 151 and a horizontal reinforcing bar 155 are formed on the upper portion of the central portion of the girder 150 to form a slab portion S on an upper portion of the girders 150 spaced apart from each other in the transverse direction, 150) is formed with a side flange portion (153) extending from the upper flange portion (151) to a lower portion of both ends of the girder (150) The girder is. In a ramming bridge in which a plurality of girders 150 are installed in the upper portion 121 of the wall portion 120 in the lateral direction,
Each of the girders 150 includes a vertical wall portion 130 including a pair of vertical walls 131 spaced apart from each other at predetermined intervals in the lateral direction at both focal points,
An elastic member 135 is formed at one side between the lower portion of the both vertical walls 131 and the upper portion 121 of the wall portion 120 to release rotational restraint of the girder 150, 139a and 139b are disposed on the other side between the lower part of the wall part 120 and the upper part 121 of the wall part 120 on one side so that no additional bending moment and horizontal force are generated when the upper slab is poured,
A plurality of U-shaped connecting reinforcing bars 133 are formed on the both vertical walls 131 so as to surround the outer wall vertical reinforcing bars 141 which are drawn upward from the upper portion 121 of the wall portion 120. [ To prevent longitudinal detachment of the girder (150). A ramen bridge using a girder including a ramp-type vertical wall. delete The method according to claim 6,
The both vertical walls 131 are formed to have a height wrapping the connection reinforcing bars 133 to the lower portion of the curved portion of the outer side wall vertical reinforcement 141 and spaced apart from each other at predetermined intervals in the lateral direction, And an inner wall vertical reinforcing bar (143) extending upward from the upper portion (121) of the wall portion (120) passes through between the upright walls (131). Ramen Bridge. The method according to claim 6,
Wherein the roller portion 139b is installed on the upper portion of the roller supporting reinforcing bar 136 formed in the upper portion 121 of the wall portion 120. [ . The method according to claim 6,
An upper flange portion 151 and a horizontal reinforcing bar 155 are formed on the upper portion of the central portion of the girder 150 to form a slab portion S on an upper portion of the girders 150 spaced apart from each other in the transverse direction, 150) is formed with a side flange portion (153) extending from the upper flange portion (151) to a lower portion of both ends of the girder (150) Ramen bridge using a girder. 11. The method of claim 10,
A projecting portion 151a is formed in the longitudinal direction of the girder 150 at the center of the side surface of the upper flange portion 151 so that the groove portion 163a of the precast panel 160a is guided by the projecting portion 151a, And the precast panel (160a) is supported by the horizontal reinforcement (155) through a support portion (161a). 11. The method of claim 10,
The upper flange portion 151 is provided at its lower side with a receiving portion 151b in the longitudinal direction of the girder 150 so that the upper projecting portion 163b of the precast panel 160b is mounted. A ramen bridge using a girder with vertical walls. 11. The method of claim 10,
The upper flange 157 of the girder 150 is formed to have a transverse width larger than that of the lower flange. A shear key 156 is formed at one side of the upper flange 157 of the girder 150, Characterized in that the upper flanges of the plurality of girders (150) joined to one another in the transverse direction are integrated in the transverse direction by means of a steel wire (159). The ramen Education. The method according to claim 6,
The prime mover of the central portion of the girder 150 is canceled by introducing prestressing by the first tension member 170 formed at the lower portion of the girder 150 after the girder 150 is pulled at the right corner, And the prestressing of the fulcrum of the girder (150) is canceled by introducing prestressing by means of a secondary tension member (180) formed on the top of the girder (150). Education. In a ramen bridging method using a plurality of girders (150) installed on an upper portion (121) of a wall part (120) formed on an upper part of a foundation (110)
(a) forming a wall-side reinforcing bar 140 including an outer wall vertical reinforcement 141 and an inner wall vertical reinforcement 143 to be exposed on an upper portion 121 of both wall portions 120;
(b) The elastic members 135 and the roller portions 139, 139a, 139b previously formed on the upper portion 121 of the wall portion 120 are provided at predetermined intervals in the transverse direction at both fulcrums of the girders 150 So that the lower portion of both vertical walls 131 formed to be spaced apart is supported;
(c) forming a slab portion S on the upper portion of the transversely spaced girders 150; And
(d) the vertical wall 130 including the vertical walls 131, the roller portions 139, 139a, and 139b, and the elastic members 135, and the concrete reinforcement 150, C), the method comprising:
An elastic member 135 is formed on an upper portion 121 of the wall portion 120 to release rotational restraint of the girder 150 and roller portions 139 and 139a are formed on the upper portion 121 of the wall portion 120, 139b are disposed so that additional bending moments and horizontal forces do not occur when the upper slab is laid,
In the step (b), a plurality of "U" shaped connecting reinforcing bars 133 are formed on the both vertical walls 131 so as to surround the outer reinforcing bars 141, Wherein the ramming bridges are constructed such that longitudinal distances are prevented. delete 16. The method of claim 15,
In the step (c), an upper flange 151 and a horizontal reinforcing bar 155 are formed on the upper part of the center of the girder 150 to form a slab on the girders 150 spaced from each other in the transverse direction, And a side flange portion (153) extending from the upper flange portion (151) to a lower portion of both ends of the girder (150) is formed at a fulcrum portion of the girder (150) A method of laying bridges using a girder including a straight wall. 18. The method of claim 17,
A projecting portion 151a is formed in the longitudinal direction of the girder 150 at the center of the side surface of the upper flange portion 151 so that the groove portion 163a of the precast panel 160a is guided by the projecting portion 151a, Wherein the precast panel (160a) is supported by the horizontal reinforcement (155) through a support (161a). 18. The method of claim 17,
The upper flange portion 151 is provided at its lower side with a receiving portion 151b in the longitudinal direction of the girder 150 so that the upper projecting portion 163b of the precast panel 160b is mounted. A method of bridging bridges using girders containing vertical walls. 16. The method of claim 15,
The prime momen of the center portion of the girder 150 is canceled by introducing prestressing by the first prime mover 170 formed at the lower portion of the girder 150 after the step (d) So as to cancel the momentum of the fulcrum of the girder (150) by introducing prestressing by means of a secondary tension member (180) formed on the upper portion of the girder (150) Construction method of ramen bridge used.









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KR101998822B1 (en) * 2018-12-14 2019-07-10 조규대 Composite rahmen bridge, steel girder for that and construction method of composite rahmen bridge
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KR20200034487A (en) 2018-09-21 2020-03-31 (주)리튼브릿지 Girder with Heating System and Bridge Construction Method Thereof
KR102249063B1 (en) * 2020-10-16 2021-05-07 (주)신승이앤씨 Prestressed concrete beam bridge improving load carrying coherence of end beam and durability using anchor plate and construction method thereof
KR102317116B1 (en) * 2021-01-29 2021-10-26 (주)지승씨앤아이 Prestressed Concrete Girder, Method for Manufacturing the Prestressed Concrete Girder, And Constructing Rahmen Structure

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KR102004277B1 (en) 2018-05-09 2019-07-26 정병목 Construction method for composite rigid-frame bridge with steel girder for reinforcing bridge support by t-shape steel and inducing pre-stress
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